Metal-slitting machine.



No.v 885,815. PATENTED APR. V28, 1908..

- l F. J. WENDELI..

METAL SLITTING MACHINE.

APPLICATION FILED JULY'ZO, 1906.

-7 :SHEETS-SHEET 2.

. @vih/leons PATENTED APR. za, 1908.

T... L E D N Du W Tm D... hw l om, 5 o0 o0 nw N METAL SLITTING MACHINE. APPLICATION' PI'LED JULY 2o. 1906.

7 SHEETS-SHEET 3.

mm. mlm

29th/:conteo fr SHEETS-snm@ N0. 885,815. PATENTED APR. 28, 1908.

. F. J. WENDBLL.

METAL SLITTING MACHINE. APPLIQATIGN FILED JULY 2b. 19.06.

A PCi/ina es.'

BNTBDAPR-281908. RJ. WBNDBLL. PAT Y y AMETAL SLITTING MACHINE.

'APPLIOAITION I'ILED4 JULY 20. 1906.

7 SHEETS-SHEET 5 METAL SLITTI NG MACHINE.` FILBQ JULY zo, 1906.

APPLIUATIOl NITED sTATEs PATENT OFFICEL FERDINAND J. wENDELL, or NEw YORK, N, Y.,

ASSIGNOR TO THE ROEBLING CONSTRUCTION COMPANY, OF NEW YORK, N'. Y., A CORPORATION OF NEW JERSEY.

METAL-summe MneHINE. .t

No. seitens l Specification of. Letters Patent. Application filed vJuly 20, 1906. Serial No.q 326,979.

Patented Aprn es, isos.

Teelt fui/tom itmay'concern: l

Be it known' thatI, FERDINAND J. WEN- DELL, a' citizen of the United States, residing at New York city, county loi' Kings, and

,Stateof New York, have invented certain new' and useful Improvements in Metal-Slit-- ting Machines,fully described and represent- -e'd 1nthel following specification and the aca machine embodying all the features of the' invention in their preferred form, and this machine-will'now be described .indetaih and' the features forming the invention then speciiicall pointed out in the claims. t

, In t e drawings-Figure 1 isa side enlevation of the machine. Fig. 2 is a plan view of the same. Fig. 3 is` a front elevationwith parts omitted. Fig. 4 is a crossisection on theline 4 of Fig. 6. Fig. 5 is a rear end elevation. Fig. 6 is a horizontalsection on'the line 6 of Figs. 1 and 5. Fig. 7 is a .vertical section on the line 7 of Fig.' 5. Fig. 8 is a detail side elevation of the feeding roll portion of the machine. Fig. 9 is a detail iront view of the knives. Fig. 1() is a section on the line 10 of Fig. 9.. 1 Fig. 11 is a plan view of one form of' slit metal produced'by the machine. r V

In the drawings, A is the ltable over which the sheets are fed by hand to the'iirst pair of feed rolls 4. The lower rolll is mounted in stationary bearings 5, andthe upper in vertically moving bearings 6, these bearings. .6 being connected 'at each side of the machine by connecting rods 7 to'pivoted levers' S, whichv hold the roll in feeding position under ressure by a spring ressed rod Vdevice 9. lhe bearings 6 with rol s 4 are thrown up by handlevers 10,0ne ,ateach side oi"v the ma# chine, these levers'being-fast on rock shaft 11,

which carriestwo cams 12', one at each side of the mach ie. -When one of the levers 1() is operate, these cams lift the upper roll 4 for the ends of the sheets to be inserted between the rolls, and after the end'of a sheet has been inserted, the hand lever is released and the sheet will be fed forward to the second pair of rolls 13, and then advanced by the two pairs of rolls. The lower roll 13 1s mounted in bearings 14 which are preferably adjustable to take up wear, a wedge adjustment 15 being shown. I,The upper roll 13 is mounted invbearin s 16 s ring pressed by springs 17. The ro 13 is s own as stiffened between its ends by bearing blocks 18 adjustable by screws 19. The tension of the springs 17 is adjusted by hand screws 20, and lock nuts 21. The feedin surfaces of the rolls 4 and -13 are formed o disks and strips or fingers are .located between the' disks of each of the rolls. The lower fingers 22 are fast to the bed at both ends, .but the upper fingers. 28 fire g spring pressed downward.

These fingers are shown as connected Iby cross bars 24 aiid as pressed down onta the metal by adjustable spring plungers 25, 28 at opposite sides of rolls 13. The bearings 16 are connected by bar 27 extending across the machine and carrying the parts 18,19, and the bearings 16 are`-eXtended to form boxes 31 which carry the plungers 25, 28, so that the springs 17 hold all these under spring ress ure. Spring plungers 29 bear on the ingers 23 close to the slitting knives; The

fingers 22, 23 forni a channel through which the metal to 4-be cut passes,`but niay be omitted, although in that case some means will preferably be used tohold the metal under 's ring pressure during the slitting action of e knives.

The upper knife consists of a cross bar 30 on ,whici are mounted a series of beveled knives a. The cross bar 30 is secured by screws 32 to a plate 33, this plate being held lbetween a pair of long jaws 34 which extend across the machine. 'lhese jaws are connected by means of bolts 135 to'a web 36l which also extends across the machine. The bolts 35 pass through enlargedi openings which pass adjusting screws 38, by which in the long jaws so as Vtoallow for adjust# -givc diil'erentlspeeds to the cuni shaft 64.

'which are 'shown as wedge shaped to permit- `1U, so as to bend the metalv lpivoted at 62, and actuated hy a. cani groove for a certain length of feed, so as to produce diiierent cuts et the metal,

wear may be taken up. The web 35 is connected to U-sliaped blocks 3E) by keys 40,

of an adjustment which is obtained by means of wedges 41 connected to right and left hand screw 42 mounted-on the web 36. Wear on the knives and other parts may thus be taken u The blocks 39 are hung on arms 423 which depend from eccentric straps 44 on the main eccentric shaft 45, so as to move the upper knives a, vertically. This eccentric shaft is mounted. in suitable bearings in the frame and is shown as having stilfening saddles 46 secured to the under side of the u per cross web of the frame to stitl'en the slihft. Collar 47 is located between thesesaddles 4G to prevent sidewise movement of the shaft. The bar 30 is mounted between a'pair of cheek blocks 48, 49, the bar 48 being adjustable in and out by means of screws 5 0 and the block 49 beine' shown adjustable by wedge 51. The bock 48 carries adjustable bearing plates 55 for plate 30.

The upper knives e co-aet with a corresponding set of stationary lower knives t, the two knives a, b preferably being beveled in opposite directions, as shown in Figs. S) and down slightly during the slitting` operation. This depends7 however, u )on the character of the machine by which t ie metal is to be handled after slitting. The lower' knives (1 are carried by bar 52.' This bar 52 has an inclined bottoni and rests on a long wedge 53 which is adjustable by screw 54. The bai' 52 rests in a recess in the frame and is held in position in the 'recess by means of an adjustable cheek block 56, this cheek block being r)rovided with a pair of adjustable bearing pilates 57.

rlhe upper knives e have a vertical reciprocating movement to produce the cut, and both sets of knives a and l) have a sidewise movement together to stagger the cuts. The knife. bars 30, 52 are connected for the sidewise movement by a block 59 connected to block 30 which takes into a recess in the lower block 52, so that the two blocks move together. The lower block 52 is connected byan adjustable link (3() to a cam lever (31 1n a cam 63 mounted on a short shaft 64. This cam 63 may be cl'iai/iged so 'as to vary the number of side movements of the knives The driving mechanism may be of any :Suitable form. As shown, the eccentric shaft G4` is driven through a train of gearing- 65 from eccentric shaft 45, these gears ('35 being arrz.:iged so that they can be changed to The eccen tric shaft 45' has a grooved crank arm 6b thereon which, by means ofthe connecting j rod 67, adjustable in. the groove, drives a pawl and ratchet mechanism 68, whichi operates on worin shaft 69, and thus drives a worin wheel mounted ona shaft 71 and fast on this shaft is a gear which is the first of a train of gears 72 through which the feeding rolls 4 and 13 are driven. The shaft t5 is shown driven through gears 73 from power shaft 74, but may itself be the power shaft.

No special description of the opera-tion of the machine is required, it being understood from the foregoing that the sheet metal is advanced step by step by the feeding rolls 4 and 13, one row of slits being formed by the knives (L, b, the knives then shifted sidewise and another row of slits formed, and the knives then returned to their first position for' the next row of slits, if the cani 63 be of the forni shown, thus )reducing the metal illustrated in Fig. ll. substituting other cams for the cams 63, the knives may be shifted in the same direction two or more times before returning` to their first position, and by substituting proper gearing, the speed of the feeding rolls and the sidewise movement of the cutters may be varied relatively to each other, so as to produce metal slit in different forms.

lt will be understood that the invention is not to be limited to the exact form or arrangement of parts shown, but that inodiiications inay-be made while retaining the invention delined by the clain 1,. The combination of a series of metal slitting knives, and means for moving both series of the knives sidewise and advancing the metal between the slitting operations.

2. The combination with two series of coacting metal slitting knives, of means for movingl one series of knives toward and from the other for slitting, and means for moving both series of knives sidewise and advancing the metal between the slitting operations( 3. The combination with two series of coacting metal slitting knives connected to move sidewise together, of means for causing a relative movement of the knives toward and from each other for slitting, and a cani and connections for moving the knives sidewise between the slitting o ierations.

4. The combination wit two series of coaeting metal slitting knives connected to move sidewise together, of means foi` causi a relative 'movement of the knives towar and from each other for slitting, a cam and connections for moving the knives sidewise between the slitting operations, and metal Afeeding devices for advancing .the metal between the slitting operations.

5. The combination with the feeding rolls 13 formed of disks, oft-he' spring pressed lingers 22, 23 between *he disks.

6. The coinbinati. ".ii feeding rolls 13, of springl pressed hf'ariags for one of the rolls, and spring pressed plungers carried by '88518125 i I A the bearings and acting at one side of the lmy hand,` in the presence of two subscribing rolls. T1 .b h f dl u wltnesses.

7. 1e com inat'ion Wit ee 'ug ro S13 of spring pressed bearings for .one of the FERDINAND J' WENDELL 5 rolls, an spring pressed plungerscarried by' Witnesses:

the bearings at opposite sides of the rolls. C. J. J .Y SAWYEB, In testimony whereof, I have hereunto set J. A. GRAVES. 

